Self-lubricating roll for roller-skates



(No Model.)

W. E. BADGER.

SELF LUBRIGATING ROLL PORROLLER'SKATES.

Patented Dec. 16, 1884.

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WILLIAM EZRA. BADGER, OF QUINCY, MASSACHUSETTS.

ELF-LUBRICATlNG RQLL FOR ROLLER SKATES.

SPBCIFZCATIQN forming part of Letters Patent No. 309,373, dated December 16, 188

Application filed October 14, 1884.

To all whom it may concern:

Be it kn own that I, WILLIAM E7. an Banana, a citizen of the United States, residing at Quincy, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Seli Lubricating Rolls ior Roller-Skates; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appcrtains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon. which form a part of this specification.

This invention relates to the especial construction of rolls for. roller-skates, whereby they are rendered self-1n bricating and in the present instance it consists, essentially,in lornr ing the roll of two parts, which are annular] y recessed to form an oil-reservoir, and further provided with internal hubs, between which is secured a ring of fibrous or some other analogous material inclosing the spindle, and by means of which the lubricant is conveyed to the latter. Further details ofconstruction will be more fully hereinafter described.

The drawings accompanying this specification represent in Figure 1 a vertical central section of an entire roll, while Figs. 2 and 3 are similar sections of the individual parts composing a self-lubricating roll embodying my invention. Fig. l is an interior view of the half roll or disk shown in 2. Fig. 5 is a plan of the fibrous oil-conducting ring, and Fig. 6 is a modification.

In these drawings, A represents a completed roll embodying my invention, and consisting of two parts, 13 O, composed, preferably, of some hard fine-grained wood-as boxwood adapted to withstand wear and hard usage, and not likely to chip or break. Said parts are circular in form, and are provided with a central bore, a, to receive the spindle upon which the roll revolves, and are interiorly recessed, as shown at b c. To unite these two parts in forming an integral roll I have made the chamber 6 in the disk 13 slightly larger in diameter than its corresponding one, 0, in the disk C, while I have constructed the latter slightly thicker, and formed a projecting lip, D, the extreme diameter of which is about the same or a trifle larger than the diameter of the (No model.)

chamber Z), into which it is tightly fitted. Before this is done glue or some strong cement is applied to the abutting edges cl 6, which form a close joint central] y located between the side faces of the roll. The component parts B O are thus firmly and strongly united.

In recessing the disks B O to form the chambers Z) c, which, when the roll is completed, constitute the oil-reservoir In, I have left a portion of the material composing the roll untouched. By this means I secure two hubs, f g, centrally located of the disks, the height of these hubs being such that they shall always lie within the median or dividing line of the roll when made up; hence when the two disks B (l are united these hubs can never touch, and for this purpose, when the parts I 0, made as hcreinbcfore premised, are put together, as shown in Fig. .l, the recesses b c nnitcdly form the annular oil -reservoir E, while the space F, now existing between the hubs, forms an annular duct or passage leading from the reservoir 1!] to the bore (a, which receives the spindle. With this construction, however, in case the reservoir E was filled, there would be nothing to prevent the free and excessive ilow of lubricant upon the spindle, and I therefore have inserted an annular packing-ring, G, composed of fibrous or some other analogous material. Thus, by making the spaceF somewhat smaller (when the parts B C are properly united and set together) than the packing G the latter is slightly compressed and retained in place, but not so much so as to prevent a suitable flow of lubricant through the fibers composing the same upon the spindle inclosed by it.

In practice I limit the supply of lubricant for large or small bearings by varying the space F between the hubs, and thus employ a thick or thin packing, and consequently obtain more or less extent of material through which to secure lubricant, as may be desired.

To make a complete self-lubricating roll, as above premised and embodying my invention, I take two circular disks, B O, centrally bored, of a diameter equal to the completed roll A desired, and recess them as shown at b c, leaving the material at the center intact, and thus form thehubs f while uponthe disk 0, which is slightly thicker than the disk B, I form a lip, D. The two parts thus constructed are ICO interiorly washed or coated with a water-proof material-such as strong shellac or some resinous substanceto prevent the oil contained within the reservoir E from being absorbed by the wood composing the roll, and thus disfiguring and staining it uponits exterior. After this operation the abutting edges de are coated with a strong cement, the fibrous packing G properly adjusted upon one of the hubs, and the two disks are pressed tightly together. hen the cement is set, Ihave obtained, by a very easy, simple, and cheap plan, a roll which, when supplied with oil, shall be self-lubricating.

Io admit the oil I bore a small hole, h, in either face of the roll and have made the chamber E of sufficient capacity to maintain a proper supply of lubricant during the life of said roll; hence I apply cement to the plug, which fits the hole I and drive it snugly home. This prevents any danger of the plug working loose in consequence of the jars or shocks incident to the use of the roll. I have further formed slight annular recesses t 7' on the exterior faces of the roll and secured therein suitable fibrous material to prevent escape of oil from the spindle, and thus maintain the roll perfectlyneat and clean at all times.

I do not desire to be limited to the precise form of the parts composing the rollA, before described, and I have therefore shown a modification in Fig. 6, in which I have obviated any objection which might arise from having the joint formed by the parts B 0 upon the periphery of the roll by inserting one part, 0, within the other, B, whereby the joint is then formed upon one side or on an inactive portion of said roll. Moreover, it is not absolutely necessary to have the hubs f g of the same size, as they may be made as shown at f and the only difference would be that the annular duct with the packing would not then come centrally between the sides; but I do not consider these slight differences to materially affect the spirit of my invention, which consists, primarily, in constructing the roll in two parts, which form an oil-reservoir, and provided with oppositely-disposed projections, which form a duct to contain fibrous material and conduct the lubricant to the spindle.

I claim 1. A roll for roller-skates, composed of two parts, forming an entirety, interiorly recessed, and constructed substantially as described.

2. In a self-lubricating roll, the combination, with the two disks forming said roll with an interior chamber, of the oppositely-dis posed hubs, so constructed as'to receive and retain between them fibrous material by which lubricant is conveyed to the spindle, substantially as herein stated.

3. In a roll for roller-skates, the combination, with said roll, of two hubs centrally disposed and adapted to form an annular duct leading from the oil-reservoir to the spindle, substantially for the purposes described.

4. In a self-lubricating roll, the combination, with the parts B O, composing the same, of the reservoir E and the hubs f g, forming the annular duct F, adapted to receive the fibrous packing G, inclosing the spindle, the whole operating substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

\VILLIAM EZRA BADGER.

II. E. LODGE, A. F. HAYDEN. 

